In the health-care industry, the doctor-patient relationship is the mirror image of the ordinary relationship between producer and consumer. Once an individual has chosen to see a physician-and even then there may be no real choice-it is the physician who usually makes all significant purchasing decisions: whether the patient should return "next Wednesday", whether X-rays are needed, whether drugs should be prescribed, etc. It is a rare and sophisticated patient who will challenge such professional decisions or raise in advance questions about price, especially when the disease is regarded as serious.
This is particularly significant in relation to hospital care. The physician must certify the need for hospitalization, determine what procedures will be performed, and announce when the patient may be discharged. The patient may be consulted about some of these decisions, but in the main it is the doctor&39;s judgments that are final. Little wonder then that in the eye of the hospital it is the physician who is the real "consumer." As a consequence, the medical staff represents the "power center" in hospital policy and decision-making, not the administration.
Although usually there are in this situation four identifiable participants-the physician, the hospital, the patient, and the payer (generally an insurance carrier or government)-the physician makes the essential decisions for all of them. The hospital becomes an extension of the physician; the payer generally meets most of the bills generated by the physician/hospital, and for t/he most part the patient plays a passive role. We estimate that about 75-80 percent of health-care expenditures are determined by physicians, not patients. For this reason, the economy directed at patients or t.he general is relatively ineffective.
测试题
What&39;s the author&39;s main purpose in writing this passage？

A. To criticize doctors for exercising too much control over patients.
B. To analyze some important economic factors in health-care.
C. To urge hospitals to reclaim their decision making authority.
D. To inform potential patients of their health-care rights.